Little JS Snippets

functions.js

//Summing numbers
const sum = (a, b) => {
	return a + b
}
console.log(sum(2, 5))

// Summing Arbitatry Numbers

const sumArbitraryNums = () {
	let sum = 0
	for (const num of arguments) {
		sum += num
	}
	return sum
}

console.log(sumArbitraryNums(2, 3, 100, 5, 20, 7))

// Reduce
const reduceArbitraryNums = (...args) => args.reduce((a, b) => a + b)
console.log(reduceArbitraryNums(2, 3, 100, 5, 20, 7))

//Object
const person = {
	firstName: 'Oby',
	lastName: 'Manyando',
	getPersonInfo1: function () {
		console.log(this)
	},
	getPersonInfo2: () => {
    //Notice behaviour of ES6 with this keyword
		console.log(this)
	},
}
person.getPersonInfo1()
person.getPersonInfo2()


const getPersonInfo = () => {
	return `He is ${person.firstName} ${person.lastName}`
}
console.log(getPersonInfo())